exists and is an alternate of . Since this is regarding statistics I assume you mean lower case sigma (Ï) which, in statistics, is the symbol used for standard deviation, and Ï2 is known as the variance.
The Acceptable Quality Limit, commonly referred to as AQL, is a method widely used to measure a production order sample to find whether or not the entire product order has met the client's specifications. The customer then has the data to make an informed decision to accept or reject the lot.
Hi Anjoran, our company uses Special inspection level S-2 for sampling check. When the sample size is 500, according to table is letter code C which is 5 pieces. However under the single sampling plan for NORMAL inspection, AQL=1.5%, the sample size becomes 8 pieces.